Liddle Syndrome in a Six-Year-Old Girl: A Case Report
Liddle syndrome is a cause of hypertension among children due to mutation in the epithelial sodium channels (ENaC) located in the kidneys. It typically presents with hypertension, hypokalemia, metabolic alkalosis with low renin and aldosterone levels. Although, most cases are children, but adults also present with this disorder owing to late diagnosis. Amiloride and triamterene efficiently improve the condition. Here we present the case of a 6-year-old girl admitted with history of hypertension, diarrhea, vomiting, weakness and palpitations on and off for the last four years. Laboratory investigations revealed metabolic alkalosis, decreased renin and aldosterone levels, hypokalemia and an inverted T wave, U wave and prolonged QT interval on ECG. Any pediatric case presenting with hypertension and electrolyte imbalance should promptly raise suspicion of Liddle syndrome. Timely diagnosis and management play a key role in reducing morbidity and mortality.
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